"Dear Hyeri" is about a reserved woman who "develops" a shiny and extraverted personality, while "Another Miss Oh" is about 2 women who have the same name ("Pretty Oh Hae Young" and "Normal Oh Hae Young") and the two are constantly compared...

I think these dramas will be similar, because there will surely be the one that everyone likes and the other one that no one minds but has so much to offer but nobody knows it.